It's not too hard to do, Sean. You'll need to take the chrome ring and
glass off, then unscrew the two screws at the back of the speedo. This will
allow the whole mechanism to come out through the front. The "blue jewel"
actually has a hollow 'stem' on the back, A round, waved-washer deal is used
in the back to keep the jewel in place on the dial face (it'll make sense
once you take it out). The stem might have broken, so careful use of
superglue might get it back on the stem.
That black plastic stuff is/was a shroud to keep the light from the
high-beam bulb concentrated on the jewel. I had one where the rubber
'fossilized' onto the jewel stem and the stem broke off on disassembly. I
used another jewel from a ruined parts speedo to replace it. Spits and
maybe even any similar Smith's gauge (MGs?...) have the bits you'll need.
I had to take my speedo completely apart to fix a decade of DPO neglect
and it now works great (and I'm no expert) But the hi-beam light is very
dim even after cleaning it all up. Just be slow and careful in disassembly
and have several jeweler screwdrivers ready.
Jeff
'74 TR6
Honolulu, Hawaii
> Dear Listers,
>
> Today, I took my new Dan Master's Electrical
> Maintenence Handbood to the garage and repaired 3
> items that were on my Things-To-Do list. The book was
> great. However, one of the items was the "high Beam"
> indicator was not illuminating when the lights were in
> high beam. At first, it appeared to be the indicator
> bulb, but once I put the new bulb in and looked at the
> dash light (bottom of the speedo), it did not appear
> to illuminate. A few more steps, (use your
> imagination) and now my "blue jewel" from the high
> beam indicator is at the bottom of my speedo...
> between the face of the instrument and the glass. So
> my question... if I remove the speedo can I remove the
> glass and reinsert (super-glue) the high beam
> indicator? Will the gasget still be good? Finally,
> what might be the "black plastic kind of stuff" that
> is sitting between the high beam bulb and where the
> "blue jewel" is mounted?
> I am looking for the brave soul that has tackled the
> speedo, disassembled and re-installed per factory
> expectations. I would rather not send it away for
> $250 to glue on the blue plastic thing-ama-jiggy.
> Thanks in advance for the help... you guys are the
> best.
>
>
> Sean O'Brien
> 1975 Topaz TR6
> http://www.triumphowners.com/679
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